Shuttle embroidering-machine.



FIELI- R. ZAHN. SHUTTLE EMBROIDERING MACHINE. APPLICATION FILED MAR. 18, 1910.

Patented Mar. 19, 1912.

WITNESSES:

- INVENTOR UNITED sra'rns Parana orrrcn.

ROBERT ZAHN-, 0F PLAUEN, GERMANY.

SHUTTLE EMBROIDERING-MACHINE.

Specification of Letters Patent.

Patented Mar. 19, 1912.

Application filed March 18, 1910. Serial No. 556,185.

the following is a full, clear, and exact spccification.

It is well known, that some shuttle embroidering machines have a so called ,4/4 pattern repeat, that is to say there are arranged four needles and four cotiperating shuttles for each length of four inches of the whole available'extent, while other embroidering machines are of the so called 6/4 pattern repeat, that is they comprise four needles and four cotiperating shuttles for each length of six inches of the whole extent, so that in one case the embroidery patterns on the material are placed nearer together than in the other case.

The present invention relates to a shuttle embroidering machine which is so arranged that it allows for an alteration of therepeat of the embroidery pattern from 4/4 to 6/4 and vice versa. For this purpose the improved machine has in combination with a needle mechanism a shuttle arrangement having each second and third shuttle guides arranged together on an easily exchangeable piece of the shuttle. board, and for each of these exchangeable pieces a substitute memher with a dead part and one single shuttle guide, capable of being substituted for its corresponding shuttle guide piece, for the purpose of having the machine of 4/4 or 6/4 pattern repeat according as the double shuttle guide pieces or their substitute mem bers are employed. I 7,

One method of construction of the improved embroidering machine is shown in the drawing in which the shuttle guides are arranged at an inclination to .the vertical.

Figure 1 is a vertical section through the machine. Fig. 2 is a front View of one part of the shuttle guides in the case of a 4/4 pattern repeat. Fig. 2 is a cross section of Fig. 2. Fig. 3 is a front view of a part of the shuttle guides'in the case of a 6/4 pattern repeat. Figs. 4 and 5 show dia rammatically the arrangement of the shuttle drivers for 4/4 and 6/4 pattern repeat respectively. Fig. 6 shows the material pressing members arranged for a 4/4 and 6/4 pattern repeat, and Fig. 7 shows the sealloping members also arranged for a 4/4-and 6/4 pattern repeat.

In Fig. 1, which shows a shuttle embroidering machine with twovrows of embroidering needles, a are the guides for the shuttles b. c is the driving bar for the shuttles of each row provided with the shuttle drivers d. e are the embroidering needles of each row, which, as is well known, are adjustable along the needle bar. f are the material pressing members and g the scalloping members.

The shuttle guides a. are arranged at an inclination to the-vertical, as may be seen from Fig. 2. According to this figure, which corrcspomls to a shuttle arrangement for the usual 4/4 pattern repeat, the guides a are secured to the shuttle board it in such. a manner that each second and third shuttle guide is arranged on a removable piece 2' of the shuttle looard which may be easily exchanged. The machine has further, as a substitute for each removable piece 2' carrying two shuttle guides, a substitute member 2'' (Fig. 3) having a dead part and one single shuttle guide and which is so formed that it can be substituted for the corresponding piece 2' and gives thus together with the remaining fixed shuttle guides a shuttle arrangement for 6/4 pattern repeat. This pattern repeat alteration requires also an alteration in the shuttle'drive. In the case of the 4/4 pattern repeat the shuttle drivers (l are arranged on the driving bar 0 in the manner shown in Fig. 4; in the case of a 6/4 pattern repeat they are arranged in the manner shown in Fig. 5, for which purpose the driving bar 0 1s provlded with slots corresponding to these pattern repeats and into which the drivers are inserted according to the desired pattern repeat.

Fig. 6 shows the material pressing members f which also are adapted for 4/4 and 6/4 pattern repeat and in which the parts marked 4 are designed for the 4/4 pattern repeat and the parts marked 6 for the 6/4 pattern repeat.

Fig. 7 shows the scalloping members g also arranged for a. 4/4 and 6/4 pattern repeat in which the parts 4 come into operation for the 4/4 pattern repeat and the parts 6 for the 6/4 pattern repeat.

What I claim is:

1. In shuttle embroidering machines, the combination with a needie mechanism, of a shuttle board, a plurality oi shuttle guides upon said board arranged according to a determined pattern repeat, each second and third shuttle guide being arranged together on a removable piece of said shuttle board, whereby for each of these removable pieces a substitute member with one single shuttle guide and. a suitably arranged. dead part may be substituted therefor so that the shuttle arrangement may be of another determined pattern repeat, substantially as and for the purpose described.

2. in shuttle embroidering machines, the combination with a needle mechanism, of a upon said board arranged according to a de termmed pattern repeat, each second and third shuttle guide being arranged together on a removable piece of said shuttle board, whereby for each of these removable pieces a substitute member with one single shuttle guide and a suitably arranged dead partmay be substituted therefor, so that the shuttle arrangement may be of another determined pattern repeat, shuttle drivers, and means whereby the positionof said shuttle drivers may be changed according to the desired pattern repeat, substantially as and for the purpose described.

3. In shuttle embroidering machines, the combination with a needle mechanism, of a shuttle board, a plurality of shuttle guides upon said board arranged according to a determined pattern repeat, each second and third shuttle guide being arranged together may be substituted therefor, that the shuttle arrangement may beot another determined pattern repeat, and material pressing members adapted for-both said pattern repeat conditions, substantially as and for the purpose described.

4-. In shuttle einbroidering machines, the combination with needle mechanism, of a shuttle board, a plurality of shuttle guides upon said board arr: i'lged according to a deshuttle board, a plurality of shuttle guides termined pattern repeat, each second and third shuttle guide being arranged together on a ren'iorable piece of said shuttle board, whereby for each of these removablepieces a substitute member with one single shuttle guide and a suitably arranged dead part may be substituted therefor, so that the shuttle arrangement may be of another determihed pattern repeat, and scalloping members arranged for both said pattern re peat conditions,substantially as and for the purpose described.

In witness whereof I have hereunto signed my name this 21st day of February 1910, in the presence of two subscribing Wit- 'nesses.

ROBERT ZAHN.

Witnesses Ronnn'r H. bum, I Riemann B. lVAsnINoiroN.

shuttle boar 

